y=mx+b is the general formula of linear equation
y=-2x+5+3x+2
y=1x+7
m=1
b=7
Answer:
3/4 times 18= 13.5
31.5-13.5=18
It cost 18 dollars for the skirt with a discount.
It cost 13.5 for the blouse as opposed to the original price of 18 dollars.
18(skirt)+13.5(blouse)=31.5
If you set up a proportion to find the original price of the skirt you will get the answer.
18/x=75/100
75x=18 times 100
75x=1800
75x/75=1800/75
x=24
The original price of the skirt is 24 dollars.
Step-by-step explanation:
Answer:
(f+g)(x)=f(x)+g(x)=x²+2x+2
Step-by-step explanation:
f(x)=7
g(x)=x²+2x-5
(f+g)(x)=f(x)+g(x)=x²+2x+2
Answer: P(x) = -3x^2 + 49x - 105
Step-by-step explanation:
The revenue accrued is the total income from sales or services rendered irrespective of the cost of purchase, production or rendering of the service. It means that revenue is the sum of cost and and profit.
From the information given, the revenue is expressed as a function,
Revenue = R(x)=x(65-3x) = 65x - 3x^2
The cost function is expressed as
C(x)=105+16x
Revenue = Profit + Cost
Therefore,
R(x) = P(x) + C(x)
65x - 3x^2 = P(x) + 105+16x
P(x) = -3x^2 + 65x - 16x - 105
P(x) = -3x^2 + 49x - 105